WO2010143816A2 - Module photovoltaïque avec une feuille thermorayonnante à revêtement céramique - Google Patents

Module photovoltaïque avec une feuille thermorayonnante à revêtement céramique Download PDF

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Publication number
WO2010143816A2
WO2010143816A2 PCT/KR2010/002910 KR2010002910W WO2010143816A2 WO 2010143816 A2 WO2010143816 A2 WO 2010143816A2 KR 2010002910 W KR2010002910 W KR 2010002910W WO 2010143816 A2 WO2010143816 A2 WO 2010143816A2
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Prior art keywords
module
heat dissipation
ceramic coating
solar
photovoltaic module
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English (en)
Korean (ko)
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WO2010143816A3 (fr
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박충권
장규환
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HAEINENERTECH CO Ltd
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HAEINENERTECH CO Ltd
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Priority to US13/139,465 priority Critical patent/US20120067399A1/en
Publication of WO2010143816A2 publication Critical patent/WO2010143816A2/fr
Publication of WO2010143816A3 publication Critical patent/WO2010143816A3/fr
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/42—Cooling means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/60—Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
    • H10F77/63—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/85—Protective back sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention is a photovoltaic module having a structure in which a heat dissipation sheet having a ceramic coating layer is attached to a conventional solar cell module, using solar heat dissipation characteristics increased by a ceramic coating layer formed on an outer surface of the heat dissipation sheet.
  • the present invention relates to a photovoltaic module having a ceramic coating heat dissipation sheet, wherein the power generation module and its peripheral devices are cooled to maximize the amount of photovoltaic power generation and the durability of the photovoltaic module is improved by a ceramic coating layer.
  • photovoltaic power generation is known to have a relatively high power generation efficiency in a high amount of sunshine, and the current solar power generation business area is also being closely connected to the amount of sunshine.
  • the conventional photovoltaic power plant should have high solar power generation in a season when the sunshine peaks, but in reality, as shown in FIG. 1, the sunshine is less than in June when the sunshine peaks.
  • the average solar power generation in April and November is cool, and the average solar power generation is maintained when the surface temperature of the photovoltaic module maintains a high temperature of approximately 60 to 80 ° C in August, when the atmospheric temperature is the highest. Efficiency drops to 12%.
  • the amount or efficiency of generation according to the surface temperature of the photovoltaic module is not significantly affected by the single crystal polysilicon or the polycrystalline silicon photovoltaic module, and the photovoltaic module itself and It can be seen that the heat of the peripheral device has a great effect on the amount of solar power generation.
  • a typical photovoltaic module is a glass substrate 10, the front surface of which is shown in FIG. EVA 20, the solar cell 30, the rear solar EVA (40), the backsheet (Backsheet) 50, the structure of the photovoltaic module having such a structure by utilizing the EVA polymer material
  • the heat generated from the solar module itself and the heat dissipation effect of peripheral devices are low, which is the biggest obstacle to solar power generation.
  • the structure is configured to effectively prevent overheating of the cell 120, but the cooling fluid
  • the weight of the module is not only limited to the installation place of the module, but also the complicated structure of the module is difficult to manufacture, and stores the cooling fluid There were problems such as having to provide a place for installing the tank separately.
  • Korean Patent Laid-Open Publication No. 2005-0094179 as shown in FIG. 5, the solar cell 123 in the tempered glass plate 121 and the EVA resin 122 And a solar cell module having a heat conduction plate 124 for absorbing and dissipating heat inside the module where the cell 123 is generated on the lower surface of the EVA resin 122.
  • the heat conduction plate 124 having a heat dissipation function is known, and mainly uses materials such as aluminum, copper, tin, stainless steel, etc. Corrosion may occur to the inside of the metal material of the heat conduction plate attached to the light emitting module, which may cause problems of deterioration of heat dissipation and durability of the heat conduction plate.
  • the current solar module is made of materials with high moisture resistance.
  • the crystalline polysilicon is very weak to moisture, and when it comes into contact with moisture, it turns into silica due to whitening phenomenon, which causes the loss of the function for photovoltaic generation, and even in the case of a metallic material sheet having a heat dissipation function, high temperature and high humidity.
  • a measure for securing the durability of a high life span of 20 years or more is urgently required in one installation.
  • the present invention is intended to suggest a direction to maximize the power generation efficiency of the module by lowering the temperature inside the module by lowering the heat of the solar module and its peripheral devices through the heat radiation function of the heat-radiating sheet on which the ceramic coating layer is formed.
  • the present invention is a module for photovoltaic generation having a structure in which a ceramic coated heat dissipation sheet is directly attached to an outer surface of a backsheet of a conventional photovoltaic module by using a double-sided adhesive tape or adhesive having heat and thermal conductivity.
  • Excellent heat dissipation effect by ceramic coating layer improves the efficiency of photovoltaic power generation, and also prevents corrosion by ceramic coating layer of heat dissipation sheet, improving module durability.
  • Existing basic equipment and process without the need for new additional equipment It is an object of the present invention to provide a solar cell module having a ceramic coated heat dissipation sheet, which is a structure in which a module can be manufactured using only a bay.
  • the present invention unlike the photovoltaic module having a structure defined above, remove the backsheet (backsheet) in the existing photovoltaic module, the structure directly attached to the ceramic coating heat dissipation sheet on the back side EVA
  • This solar module is designed to reduce the temperature inside the module by the heat dissipation effect of the heat dissipation sheet to maximize the power generation efficiency of the existing module, and also to prevent corrosion by the ceramic coating layer of the heat dissipation sheet to improve the durability of the module.
  • Another object of the present invention is to provide a solar power module having a ceramic coated heat dissipation sheet, which is characterized in that the structure is simplified to lower the manufacturing cost.
  • the present invention forms a ceramic coating layer on both sides of the heat dissipating sheet or on the opposite side of the surface in contact with the EVA or the backsheet, thereby utilizing the ceramic coating layers formed on both sides or one side of the heat dissipating sheet.
  • the method of increasing the heat dissipation is due to the difference in emissivity, thermal shear rate, and surface area of the material.
  • the heat generated in the solar cell is transferred to the EVA, which is transferred to the heat dissipation sheet, which is the carrier, and then heat is transferred to the ceramic coating layer.
  • the heat transfer phenomenon flows in one direction to have a high heat radiation rate, which increases heat dissipation performance, increases the cooling efficiency of the photovoltaic module and its peripherals, lowers the internal temperature, and generates power through the module with the heat dissipation sheet.
  • Heat dissipation sheet by ceramic coating layer Durability is characterized by a corrosion-resistant, the physical properties such as moisture resistance is improved so as to prolong the use for solar power generation module light.
  • the photovoltaic module is a laminated structure in order of the glass substrate 10, the front solar EVA (20), the solar cell (30), the rear solar EVA (40), the backsheet (50),
  • Solar light having a ceramic coating heat dissipation sheet, characterized in that the heat dissipation sheet (60) having a ceramic coating layer attached to the outside of the backsheet (50) using a double-sided adhesive tape or adhesive (55).
  • the module for power generation is a means for solving the problem.
  • Ceramic coating heat dissipation sheet characterized in that the laminated structure of the glass substrate 10, the front surface of the EVA (20), the solar cell 30, the rear surface of the EVA (40) and the heat dissipation sheet 60 formed with a ceramic coating layer
  • the solar photovoltaic module provided with another means for solving the problem.
  • the heat dissipation sheet 60 is a material having excellent thermal conductivity, it is preferable to use one of aluminum, copper, brass, steel, stainless steel, and a metal sheet having an emissivity performance equivalent to or higher than these materials,
  • the ceramic coating layer is formed by thermally conducting ceramic coating layers 61 and 62 by ceramic coating one or both surfaces of the heat dissipation sheet by a conventional ceramic coating method.
  • the present invention by the above problem solving means is a photovoltaic module having a structure in which a heat dissipation sheet with a ceramic coating layer is bonded by modifying a conventional solar module, on the opposite side of the surface contacting the backsheet (Backsheet)
  • a heat dissipation sheet with a ceramic coating layer is bonded by modifying a conventional solar module, on the opposite side of the surface contacting the backsheet (Backsheet)
  • the method of increasing the heat dissipation using the ceramic coating layer formed on both or one side of the heat dissipation sheet is caused by the heat generated in the solar cell due to the difference in emissivity, thermal shear rate, and surface area of the material. It is transferred to the heat-dissipating sheet thin plate, which is a carrier, and heat is transferred to the ceramic coating layer to radiate heat, which causes radiation to flow in one direction.
  • the module for solar photovoltaic according to the present invention is applicable to not only a new module but also an existing produced module itself, which is an advantage that the structure can be manufactured under the same process conditions without changing existing equipment.
  • 1 is a graph showing the amount of photovoltaic power generation according to the amount of sunshine per month by a conventional photovoltaic module
  • FIG. 3 is a view showing a cross-sectional structure of a conventional photovoltaic module
  • FIG. 4 is a view showing a cross-sectional structure of a conventional solar module for solar
  • FIG. 5 is a view showing a cross-sectional structure of another conventional photovoltaic module
  • FIG. 6 is a view showing a cross-sectional structure of a photovoltaic module for bonding a heat dissipation sheet using a double-sided adhesive tape to a backsheet as an embodiment according to the present invention
  • FIG. 7 is a view showing a cross-sectional structure of a photovoltaic module having a backsheet removed and bonded to a heat dissipation sheet according to another embodiment of the present invention.
  • FIG. 9 is a graph showing the average value of the temperature change between the surface temperature of the conventional module for photovoltaic generation having a heat dissipation sheet and the attached module and the replaceable module having a ceramic coating layer,
  • Figure 10 relates to a graph showing the efficiency of the power generation according to the monthly standard heat dissipation effect of the solar module according to the present invention.
  • Figure 6 is an embodiment according to the present invention, a cross-sectional structure of a photovoltaic module for bonding a heat dissipation sheet using a double-sided adhesive tape to the back sheet
  • Figure 7 is another embodiment according to the present invention, It is related with the figure which showed the cross-sectional structure of the photovoltaic module which removed the back sheet and bonded the heat radiating sheet.
  • FIG. 1 In accordance with an embodiment of the present invention, as shown in FIG. 1
  • the photovoltaic module is a laminated structure in order of the glass substrate 10, the front solar EVA (20), the solar cell (30), the rear solar EVA (40), the backsheet (50),
  • a ceramic coating heat dissipation sheet having a ceramic coating layer is provided, wherein the heat dissipation sheet 60 having a ceramic coating layer is attached to the outside of the backsheet 50 using a double-sided adhesive tape or an adhesive 55. It relates to a solar module (hereinafter referred to as "attachable module").
  • a typical solar photovoltaic module is shown in Figure 3 glass substrate 10, front surface EVA (20), solar cell (30), rear surface EVA (40), backsheet (Backsheet) (50) Has a laminated structure, and thus the backsheet 50 itself made of a fluorine resin material serves to lower the heat dissipation or heat transfer function.
  • the existing photovoltaic module production process is not easy to change the process or change the material because each material at the same time using a vacuum crimping heat bonding method.
  • the attachable module according to the present invention is characterized in that it is a simple structure that can produce a solar power module having a heat dissipation function through a simple process by adhering a thin film heat dissipation sheet to the final product of the solar power module.
  • the attachable module uses a double-sided adhesive tape or adhesive having heat and thermal conductivity on the outer surface of the back sheet 50 to bond the heat dissipation sheet directly to the back sheet of the fluororesin material.
  • the heat storage accumulated in the) is transferred to the heat dissipation sheet through the double-sided adhesive tape or the adhesive layer to radiate heat to the outside to cool the heat of the solar module and the peripheral device.
  • Double-sided adhesive tape usable in the present invention is a double-sided adhesive tape having a heat-resistant and heat conductive function, the general type of double-sided adhesive tape currently available on the market is applicable, and the adhesive is also an adhesive having a heat and heat conductive function In this case, all are applicable.
  • the double-sided adhesive tape usable in the present invention is a double-sided adhesive tape having a heat resistance and thermal conductivity function, for example, a double-sided adhesive tape having a heat resistance and thermal conductivity properties of 3M company or two loss up It is preferable to use a double-sided adhesive tape or the like having heat resistance and thermal conductivity properties, and in the case of a tape having physical properties equal to or higher than those described above, all are applicable.
  • the adhesive it is preferable to use, for example, a 3M ceramic adhesive, a Dow Corning silicone heat-resistant adhesive, an epoxy adhesive, a third-party silicone material heat-resistant adhesive, or the like, as an adhesive having heat and thermal conductivity.
  • a 3M ceramic adhesive a Dow Corning silicone heat-resistant adhesive, an epoxy adhesive, a third-party silicone material heat-resistant adhesive, or the like.
  • Attachable module having the structure as described above according to the present invention by attaching a heat radiation sheet on the outer surface of the backsheet (Backsheet) the ambient temperature of the module for solar cells is up to 10 compared to the ambient temperature of the conventional solar module It could be obtained through the experiment to fall in and out of °C.
  • the back sheet attachment type module according to the present invention is a situation in which the intense price competition is beginning in the market of the photovoltaic module industry. Therefore, the unit price of the heat dissipation sheet using the adhesive may be more expensive than the conventional photovoltaic module. Because it is not present, it is desirable to apply it only to premium products of 220W class.
  • Ceramic coating heat dissipation sheet characterized in that the laminated structure of the glass substrate 10, the front surface of the EVA (20), the solar cell 30, the rear surface of the EVA (40) and the heat dissipation sheet 60 formed with a ceramic coating layer It relates to a photovoltaic module having a (hereinafter referred to as "alternative sheet module").
  • the replacement sheet type module having the above structure removes the existing back sheet 50 from the structure of a conventional photovoltaic module and replaces it with a heat dissipation sheet 60 instead of the back sheet 50.
  • all the work is done in the basic equipment and process for manufacturing solar photovoltaic, which eliminates the need for additional equipment, thus reducing the work process and price competition and process improvement can be achieved at the same time.
  • the polymer type backsheet 50 is removed, the module can be improved so that heat dissipation is performed more smoothly.
  • the alternative module as described above has a heat dissipation effect of about 10 °C compared to the conventional module for photovoltaic generation
  • the heat dissipation effect is increased by 1.5 times or more compared to the attached module about 15 °C or more It brings the effect of lowering the surface temperature of the solar module.
  • the heat dissipation effect as described above is a result obtained by applying only the heat dissipation sheet to the pure solar module without considering the heat transfer efficiency of the back-side EVA.
  • the heat dissipation sheet used in the attachment type module and the replacement sheet type module has thermal conductive ceramic coating layers 61 and 62 formed on both sides or one side of the surface thereof, thereby increasing the heat dissipation effect, moisture resistance, corrosion resistance, There is an advantage that can enhance the additional effects such as durability, heat resistance, solvent resistance.
  • the thin plate of the heat dissipation sheet used in the attachment type module or the replacement sheet type module is a material having excellent thermal conductivity, and is one of aluminium, copper, brass, steel, stainless steel, and metals having emissivity performance equivalent to or higher than those of such materials. Or it is preferable to use more than that, and considering the price of the material, the thermal conductivity, etc. comprehensively considering the copper thermal conductivity relative to the price of the raw material is about 2 times higher than the thermal conductivity of aluminum, it is most preferable to use the same material.
  • the heat dissipation sheet 60 used in the attachment type module and the replacement sheet type module has a surface treated on one side to form a ceramic coating layer 62, and the opposite side bonded to the EVA resin improves the adhesion between the heat dissipation sheet and the EVA resin.
  • the bonding property is further improved.
  • the adhesive of the heat sink is a resin type
  • a metal that is well bonded to the resin should be selected.
  • the ceramic coating layer 62 is formed on only one surface of the heat dissipation sheet, the ceramic coating layer 62 is formed on the opposite side of the surface bonded to the EVA resin.
  • FIGS. 6A and 7C illustrate that the ceramic coating layers 61 and 62 are formed on both sides of the heat dissipation sheet 60, and FIGS. 6B and 7D show one side of the heat dissipation sheet.
  • the ceramic coating layer 62 is formed on the surface.
  • Ceramic coating method is generally known to mean the method of processing the surface to be bonded to one side of the heat-resistant sheet metal thin film or one side of the polymer resin and coating various ceramic materials therein and is widely used in ceramic processing do.
  • This coating method has the advantage that heat transfer flows to only one side because it is coated on the surface of one side. Taking advantage of this advantage, if applied to the solar module for one side facing the outermost of the module has a heat radiation effect through the heat transfer path.
  • Ceramic coating materials are generally known to be difficult to directly adhere to metal thin films or polymer resins. Therefore, by coating the surface of the ceramic to give a more durable ceramic coating product was obtained, this treatment is in accordance with the general surface treatment or techniques.
  • the ceramic coating layers 61 and 62 are thermally conductive ceramic coating films formed on the surface of the heat dissipating sheet metal material. Such ceramic coating films have an advantage of making optimum heat dissipation conditions by controlling the thickness thereof.
  • Heat-resistant ceramic material that can be used in the ceramic coating layer in the present invention is one of metal ceramic materials such as alumina, zirconia, titanium oxide, silica, metal oxide, organosilane, inorganic silane, silane coupling agent, non-metal ceramic materials such as CNT or The above can be selected and used.
  • metal ceramic materials such as alumina, zirconia, titanium oxide, silica, metal oxide, organosilane, inorganic silane, silane coupling agent, non-metal ceramic materials such as CNT or The above can be selected and used.
  • the heat-resistant ceramic material as described above basically utilizes only metal oxides, and when some non-metal inorganic coating agent is mixed and coated with the metal oxide, heat-resistant synthetic resins such as urethane or polyimide that can withstand a high temperature of about 300 °C Also used.
  • the ceramic composition used in the present invention is not necessarily limited to the composition having a specific component and component ratio, and may be appropriately adjusted according to the needs of the manufacturer or the needs of the consumer.
  • the module for solar photovoltaic according to the present invention is the thickness of the material constituting each layer, that is, the thickness of the glass substrate 10, the front solar EVA (20), the solar cell (30), the rear solar EVA (40) It is preferably 1 to 5 mm, 0.1 to 2 mm, 0.15 to 0.3 mm, 0.1 to 2 mm, respectively, the thickness of each material is not necessarily limited to the above-mentioned thickness, depending on the needs of the consumer or the needs of the manufacturer Can be adjusted accordingly.
  • the thickness of the ceramic coating layer formed on the surface of the heat dissipation sheet 60 is 5 to 100 ⁇ m as a thickness sufficient to increase physical properties such as durability, corrosion resistance, and moisture resistance of the heat dissipation sheet.
  • the thickness of the coating layer is not necessarily limited within the above range, and may be appropriately adjusted as necessary.
  • each component material used in the photovoltaic module according to the present invention typically uses the same material as the material used in the conventional photovoltaic module, and briefly describes each component constituting the photovoltaic module. The description is as follows.
  • the substrate is a plate for injecting sunlight into the solar cell 30 therein to protect the solar cell 30, and it is preferable to use a transparent or translucent tempered glass substrate or a synthetic resin substrate. More preferably, the substrate 10 is used.
  • the front or rear solar EVA (20) 40 is located on the front and rear surfaces of the solar cell 30 as an essential material for maintaining the lifespan of the solar module for 20 to 30 years, thereby preventing damage to the solar cell 30.
  • a protective layer that serves as a cushioning material to prevent it serves as an adhesive for bonding the glass substrate 10 and the back sheet 50, which are parts to be bonded to the solar cell 30.
  • Solar EVA 20, 40 used in the protective layer in the present invention is used as the form of the sheet, the material may be selected from among EVA, EEA, fluorocarbon resin or a resin having a performance equivalent to or higher.
  • the solar cell 30 is a semiconductor device that converts light into electricity.
  • the minimum unit is called a cell, and since the voltage from one cell is usually 0.5 to 0.6 V, the voltage is very small.
  • Modules are manufactured in the form of panels that can be connected in series to obtain voltages from several volts to several hundreds of volts.
  • the backsheet (50) is located on the back of the photovoltaic module, a layer that serves to protect the solar cell 30 from the outside environment by preventing moisture penetrating from the back, mainly fluorine resin Is used.
  • Conventional photovoltaic modules consisting of such parts are laminated by laminating the parts and then vacuum-compressed by a laminator by a conventional method, and then the edge of the photovoltaic module is aluminum by a conventional method. It is manufactured so that it can withstand external shocks and have waterproofness by finishing with a finish.
  • the facility for measuring the heat dissipation effect of the module for photovoltaic generation is a self-produced facility, installed two solar modules for the acrylic chamber, the surface temperature of the acrylic chamber It is equipped with a surface measuring thermometer to measure, an internal thermometer to measure the temperature inside the acrylic chamber, and a sensed temperature measuring instrument for measuring the temperature of the surface of two solar modules.
  • Figure 8 is a photograph taken a facility for measuring the heat radiation effect.
  • the heat dissipation effect measuring equipment of the solar power module having the structure as described above is a facility having the structure as shown in the photo of FIG. 8, so that the power generation amount, voltage, and current can be simultaneously measured using the solar module efficiency device. It is designed to control the internal temperature, and the measuring equipment used in the present invention is a surface temperature measuring apparatus at an experimental level.
  • Heat dissipation sheet formed with glass substrate 10, front side EVA 20, side cell 30, rear side EVA 40, backsheet 50, double-sided adhesive tape 55 and ceramic coating layer ( Attached modules having a stacked structure in the order of 60) were manufactured.
  • the thickness of the glass substrate 10, the front surface EVA (20), the front cell 30, the back surface EVA (40), the back sheet 50 and the heat radiation sheet 60 in the module of Example 1 are each 2 ⁇ 0.1 mm, 1.5 ⁇ 0.1 mm, 0.2 ⁇ 0.05 mm, 1.5 ⁇ 0.1 mm, 0.3 ⁇ 0.1 mm, 0.3 ⁇ 0.1 mm.
  • the heat dissipation sheet material used in Example 1 is an aluminum thin film
  • the backsheet material is a fluorine resin
  • the thickness of the ceramic coating layer formed on both sides of the heat dissipation sheet is 20 ⁇ 10 ⁇ m.
  • Example 1 In the ceramic coating layer of Example 1, three types of coating layers were formed by dividing each into a) a ceramic coating layer of a metal oxide such as alumina, titanium oxide, zirconia, b) CNT coating layer, and c) Si coating layer.
  • a ceramic coating layer of a metal oxide such as alumina, titanium oxide, zirconia
  • b) CNT coating layer a ceramic coating layer of a metal oxide such as alumina, titanium oxide, zirconia
  • An alternative sheet module having a laminated structure was formed in order of the glass substrate 10, the front solar EVA 20, the solar cell 30, the rear solar EVA 40, and the heat dissipation sheet 60 formed with a ceramic coating layer.
  • the thickness of the glass substrate 10, the front solar EVA 20, the solar cell 30, the rear solar EVA 40 and the heat dissipation sheet 60 in the module of the second embodiment is the same as the first embodiment Applied.
  • the material of the heat dissipation sheet and the backsheet used in Example 2 used the same material as in Example 2, the thickness of the ceramic coating layer formed on both sides of the heat dissipation sheet and the kind of coating layer were the same as in Example 1. Conditions were applied.
  • the solar cell substrate 10, the front solar EVA (20), the solar cell (30), the rear solar EVA (40) and the heat dissipation sheet 60 made of a conventional solar module for producing a first embodiment and Used as a control for comparison with the module of Example 2.
  • each laminated material of the module of Comparative Example 1 was applied to the same thickness as the thickness defined in Example 1, the heat radiation sheet used in Comparative Example 1 is an aluminum thin film, the ceramic coating layer is not formed Was used.
  • the heat dissipation sheet 60 applied to the first and second embodiments using the heat dissipation effect measuring equipment of the solar power generation module having the structure as described above in 1 is a ceramic as shown in Table 1 below.
  • the surface temperature of the module was measured during the day (from 9 to 5 o'clock) for 2 days by selecting sunny days from March to April, and then the relative temperature difference for the control module.
  • the result of the average value converted from the heat dissipation effect is as shown in Table 1 below.
  • the heat dissipation effect was evaluated to be very good when the ceramic thin film, steel plate, stainless steel, copper plate, and brass plate were used in ceramic coating, and the heat dissipation effect was also used when the CNT coating was used.
  • the heat dissipation effect of stainless was poorly evaluated in the backsheet-attachable module even when using Si-coated. All were evaluated as usable in the present invention.
  • the surface temperature of the photovoltaic modules of Examples 1 and 2 according to the present invention is clear in April, using Comparative Example 1 as a control module, which is a conventional photovoltaic module having a structure defined in 2 above.
  • the results of the average value of the heat dissipation effect based on the relative temperature difference for the control module were measured after 10 days each day (9 to 5 o'clock) after selecting the day. The results are shown in Table 2 below.
  • the a) ceramic coating is a ceramic coating treatment by spray coating method using the ceramic coating agent used in Patent No. 10-0871877 registered by The Molon Korea Co., Ltd. and forms a film through heat treatment of 80 °C or more for 20-30 minutes
  • B) CNT coating was mixed with epoxy binder and coated by spray method because it has no self adhesive force. After coating with 5 ⁇ 30% of CNT dispersed in this experiment, 80 Drying and film formation above °C °C, c)
  • Si coating is generally coated by the spray method by acting as a binder and a coating agent, the method is to dry when the volatile solvent in the coating is volatilized It is excellent in utilization due to curing at low temperatures, but has a weaker side than the two methods of its fastness and durability.
  • the second embodiment which is a module that removes the backsheet and replaces the heat dissipation sheet with the ceramic coating layer, is an attachment type module in which the heat dissipation sheet with the ceramic coating layer is bonded to the outer surface of the backsheet using double-sided adhesive tape. It can be seen that the heat dissipation effect is higher than in Example 1.
  • Figure 9 is Comparative Example 1 of the conventional photovoltaic module having a heat dissipation sheet and Example 1 of the second embodiment of the attached sheet module and the alternative sheet-type module to which the heat dissipation sheet having a ceramic coating layer formed according to the present invention.
  • the graph shows the average value of the temperature change with the surface temperature of the module over time for the photovoltaic module.
  • the surface temperature of Comparative Example 1, which is a conventional module with a heat dissipation sheet, is the highest and the Si coating layer. It was found that the average surface temperature of the module gradually decreased in the order of the CNT coating layer and the ceramic coating layer.
  • the result of measuring the amount of power generation according to the monthly heat dissipation effect using the solar power module of Example 2 according to the present invention is the same as the contents of the graph shown in FIG. 10, and the monthly heat dissipation effect of the conventional solar power module
  • the temperature is cool, especially In the case of the high temperature of August, the surface temperature of the conventional module is 87.5 ° C., and the efficiency of photovoltaic power generation is only 12% as shown in the graph shown in FIG.
  • the temperature on the surface of the module is only 65.8 ° C., and the solar power generation efficiency is also improved to 16%. It was.
  • the amount of photovoltaic power generation has a great influence on the amount of photovoltaic power generated by the solar module and the peripheral device.
  • Figure 10 relates to a graph showing the efficiency of the power generation according to the monthly standard heat dissipation effect of the solar module according to the present invention.
  • a first aspect of the present invention for solar cell module for solar cell module
  • the photovoltaic module is a laminated structure in order of the glass substrate 10, the front solar EVA (20), the solar cell (30), the rear solar EVA (40), the backsheet (50),
  • Photovoltaic power generation having a ceramic coating heat dissipation sheet, characterized in that the heat dissipation sheet (60) having a ceramic coating layer attached to the outside of the backsheet (50) using a double-sided adhesive tape or adhesive (55).
  • the heat dissipation sheet (60) having a ceramic coating layer attached to the outside of the backsheet (50) using a double-sided adhesive tape or adhesive (55).
  • a solar module In a second aspect of the present invention, there is provided a solar module.
  • Ceramic substrate heat dissipation sheet characterized in that the laminated structure of the glass substrate 10, the front surface of the EVA (20), the solar cell (30), the rear surface of the EVA (40) and the heat radiation sheet 60 formed with a ceramic coating layer It relates to a photovoltaic module having a.
  • the present invention is a solar photovoltaic module having a structure in which a heat dissipation sheet having a ceramic coating layer is bonded by remodeling a conventional solar photovoltaic module, and forming a ceramic coating layer on a surface opposite to a surface of the backsheet. Maximize the amount of power generation and power generation efficiency by having emissivity, and can be applied to the existing module itself as well as the new module, so that it can be manufactured under the same process conditions without changing the existing equipment. It is expected.

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  • Photovoltaic Devices (AREA)

Abstract

La présente invention porte sur un module photovoltaïque, caractérisé en ce qu'il comprend une feuille thermorayonnante recouverte d'une couche de revêtement céramique, qui est fixé à un module photovoltaïque classique. Dans un procédé destiné à augmenter le rayonnement thermique à l'aide de la couche de revêtement céramique disposée sur les deux faces ou sur une face de la feuille thermorayonnante, la chaleur produite par une pile solaire, en raison des différences d'émissivité thermique, de vitesse de cisaillement thermique et d'aire de matériau, est transférée à un film solaire EVA, puis à une plaque mince formant feuille thermorayonnante, qui sert de support, pour revenir à la couche de revêtement céramique, pour une émission. On obtient une grande émissivité thermique en ayant ce que l'on appelle un phénomène de transfert thermique dans une direction, ce qui en conséquence améliore les performances de rayonnement thermique et augmente le rendement de réfrigération du module photovoltaïque et de ses dispositifs périphériques, pour abaisser de ce fait la température interne. Ainsi, il est possible de rendre maximal le taux de production d'énergie et le rendement, grâce à un module auquel est appliquée la feuille thermorayonnante, et un module photovoltaïque comportant une telle feuille thermorayonnante peut conserver une variation du taux de production d'énergie, traditionnellement due à un changement de la température de surface à un niveau constant, ce qui va augmenter de 3-5 % le taux annuel de production d'énergie, par comparaison avec celui d'un système traditionnel, en améliorant l'effet de production d'énergie en été, de 5-10 %. En outre, on peut garantir de larges possibilités d'utilisation, en appliquant d'une manière identique le module photovoltaïque de la présente invention à des zones présentant des conditions météorologiques tropicales, avec une forte chaleur ou une température élevée et une forte humidité, tout comme dans les zones désertiques. En outre, le module photovoltaïque selon la présente invention est avantageux en ce qu'il peut s'appliquer non seulement à un nouveau module, mais aussi à un module déjà existant, ce qui permet de fabriquer des modules photovoltaïques de ce type dans les mêmes conditions de fabrication que les modules classiques, sans modifier l'équipement existant.
PCT/KR2010/002910 2009-06-11 2010-05-07 Module photovoltaïque avec une feuille thermorayonnante à revêtement céramique Ceased WO2010143816A2 (fr)

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US13/139,465 US20120067399A1 (en) 2009-06-11 2010-05-07 Photovoltaic module with ceramic coating heat radiating sheet

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KR1020090052067A KR100962642B1 (ko) 2009-06-11 2009-06-11 세라믹 코팅 방열시트를 구비한 태양광발전용 모듈
KR10-2009-0052067 2009-06-11

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WO2010143816A3 WO2010143816A3 (fr) 2011-02-17

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